Combined electric connector and switch



C. BR AIVIMING.

COMBINED ELECTRIC CONNECTOR AND SWITCH. APPLICATION man MAY 3.1911. RENEWED 0016. I919.

Patented Dec. 2, 1919.

I /4 I /d 1 -'Be it' known that I, CARL UNITED STATES PATENT OFFICE.

CARL BKAMMING, OF CHICAGO, ILLINOIS, ASSIGNOR T0 ACCESSORIES MANUFACTURING 00., A CORPORATION OF ILLINOIS.

COMBINED ELECTRIC COZhTNEC TOR AND SWITCH.

Specification of Letters Patent.

Patented. Dec. 2, 1919.

Application filed May 3, 1917, Serial No. 166,236. Renewed October 6, 1919. Serial No. 328,929.

To all whom it mag concern:

BRAMMING, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in, Combined 'Electric Connectors and Switches, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relatesto connectors ot the plug and socket type especially adapted for carrying an mcandescent bulb; its object being to provide simple and eflz'ective means for connecting the leading-in wire with the lamp or other terminal. and arranged to close and open the circuit by alternate inthrusts of the terminal plug or lunger.

The invention is a specific 'app ication of the switch forming the subject of a co -pending application to a connector; and 1t consists of a structure such as is hereinafter described and as illustrated in the. accompanying drawings, in'which Figurel is a longitudinal central of the device showing section the circuit closed;

Fig. 2 isan elevatlonof the device; and

Fig. 3 is a 'longitudinal'central section showing the circuit open.

The body of the connector takes the form of a tubular socket 10, within one end of which is received and retained by a bayonet joint a terminal plug 11, shown as being the base of an incandescent lamp and having a central contact .element 12. .Within the tube 10 is fixed a block 13 of insulating material, through which is set a fixed tube 14 provided at each end with reciprocating contact elements 15, 16, between which reacts an. expansive spring 17.

A plunger 18 reclprocates within the opposite end of the tube 11), and is provided with an axial conductor 19, socketed at its outer end, as shown at 20, to receive a leading-in wire. A spring seat 21 is mounted upon the inner end of the conductor 19, and an expansion spring 22 reacts between this seat and the block 13.

A disk 23 is mounted upon the conductor 19 back of the spring seat 21, and is preferably rotatable with reference to the plunger 18. A pair;of studs, as 24, only one of which appears inthe drawings, project radially from the margin of the disk 23, each cooperating with a detent 25 for holding the )lun er at its inner position a ainst the effortof the spring 22, in which position .of'the tube 10 for cooperating with each of the studs 24, for so positioning each as to pass the detent as the plunger moves inwardly, to cause its engagement with the detent as inivard pressure upon the plunger is relieved, and to disengage it from the detent at the next inward movement of the plunger; to permit it to pass the detent as the plunger moves outwardly when the pressure thereon is relieved. These cams are preferably formed by aperturing the wall of the 'tu'be,'as shown at 26. \Vhen the plunger is in its outer position the stud engages the outer end 27 of the aperture. As the plunger approaches the inward limit of its movement the stud is engaged by an oblique cam edge 28 of the aperture and shifted laterally. As pressure upon the plunger is relieved the stud comes into engagement with the detent 25, which is preferably formed as a bridge crossing the aperture 26.

The edge of the detent with which the stud Pressure upon the plunger being relieved it moves outwardly to its original position,

looped or bowed outwardly at its ends, as

shown at 32, 33, to provide ways for the passage of the stud 24.

While an efficient and preferred embodiment of the invention is shown and described, various changes of detail may be made without departing from its scope.

I claim as my invention 1. In a combined electric connector and switch, in combination, a socket, a fixed abutment therein, a spring-advanced contact carried by the abutment, a spring-retracted terminal plunger reciprocable in the socket and cooperating with the named contact, and means acting on alternate inthrusts of the plunger 'for holding it in engagement with the contact and for releasing it from such engagement.

2. 111 a combined electric connector and switch, in combination, a socket, a fixed abutment therein, a spring-advanced contact carried by the abutment, a swing-retracted terminal plunger reciprocable in the socket and cooperating with the named contact, a detent for holding the plunger in engage lnent-With the contact, and (nuns actiiig on the plunger to engage it with the detent and to release it from such engagement, respectively, on alternate inthrusts of the plunger.

3.In a combined electric connector and switch, in combination, a socket, a fixed abutment therein, a spring-advanced contact carried by the abutment, a spi'ingret-racted terminal plunger reeiprocable in the socket and. cooperating with the named contact, a stud projecting laterally from the plunger, a detentfor engaging the stud to retain the plunger in engagement with the contact, a cam for guiding the stud in position for engaging the detent as the plunger is thrust. inward, and a cam for guiding the stud out of such engaging position, such two cams being effective on alternate strokes of the plunger.

.4. In a combined electric connector and switch, in combination, a socket, a fixedplunger in ad abutment therein, a spring-advanced contact carried bythe abut-n'ient, a'sprmgretracted terminal plunger reciprocable 1n the socket and coiiperating with the named contact, a

conductor extending axially through the plunger, a seat for the retractin spring mounted on the inner end of the plunger, a disk swiveled on the COl'KlHCtOZ back of the spring seat and having a radial stud, a detent for engagin the stud to retain the 'd po ion, a cam -for guiding the stud \va'rd into position mg -aging the detent, and a cam for ring the stud out of such position on the next succeeding inthrust of the plunger.

5. In a combined electric connector and switch, in combination, a socket having a contact element, a terminal plug interfitting and reciproca'ble in the socket and cooperat-v ing with the contact element thereof, a spring for forcing the plug outward, astud projecting laterally from the plug, an aper- -ture in thewall of the socket for receivingthe stud to the bridge recess and in line witli the ends of the bridge on alternate int-hrusts of the plug.

' CARL BRAMMINGV he plunger moves in 

